Abstract
In this paper, the algorithm of building a decision tree is introduced by comparing the information gain or entropy. The produced process of univariate decision tree is given as an example. According to rough sets theory, the method of constructing multivariate decision tree is discussed. Using the algorithm, the complexity of decision tree is decreased, the construction of decision tree is optimized and the rule of data mining could be built.
This paper is supported by Beijing Educational Com mittee under Grant No. KM200410028013.
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Liu, X., Huang, H., Xu, W. (2004). A Contribution to Decision Tree Construction Based on Rough Set Theory. In: Tsumoto, S., Słowiński, R., Komorowski, J., Grzymała-Busse, J.W. (eds) Rough Sets and Current Trends in Computing. RSCTC 2004. Lecture Notes in Computer Science(), vol 3066. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-25929-9_79
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DOI: https://doi.org/10.1007/978-3-540-25929-9_79
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-22117-3
Online ISBN: 978-3-540-25929-9
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